5155-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5155-77-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,5 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5155-77:
(6*5)+(5*1)+(4*5)+(3*5)+(2*7)+(1*7)=91
91 % 10 = 1
So 5155-77-1 is a valid CAS Registry Number.
5155-77-1Relevant academic research and scientific papers
The Oxidative-Rearrangement of 1-Amino-2-indolinones. A Synthesis of 2-Substituted-3(2H)-cinnolinones.
Zey, R.L.,Richter, G.,Randa, H.
, p. 1437 - 1439 (2007/10/02)
Several 2-substituted-3(2H)-cinnolinones have been synthesized by a ring expansion of the respective 1-substituted-2-indolinones via an oxidative-rearrangement with t-butyl hypochlorite.
